75 3.0 Fuel Problem - Alfa Romeo Forum
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Help 75 3.0 Fuel Problem

If anybody could supply some information I would be exceedingly grateful!

I have a gorgeous 1991 Alfa 75 3.0 V6 Cloverleaf - just in case their are any ambiguities.

I have had the car from new and have had it in storage for some nine years. I run the girl up every 4-6 months and to date she has always fired straight away and run like the dream she is.

However I recently attempted to start her and she was not interested at all. Turns over fine, but not a dickie of a cough, splutter, spit or growl.

To cut a long story shortish, I tracked down that no fuel was arriving at the injector rail. I replaced the fuel pump and fuel filter (although I had never had any previous issues with either) and now fuel is running to the rail perfectly....but still no start.

It now appears that no fuel is coming through ANY of the injectors (no plugs are at all wet or smell of fuel.)

I am, at this stage, reluctant to dismantle the entire injector rail as I am somewhat suspicious - I could understand if one or maybe two injectors may have become clogged for some reason, but all six? I would be mighty surprised.

My questions;

A) Does anybody know if there is any sort of mechanical/electro-mechanical/electrical 'cut-out' or anything similar that kicks in if fuel stops running to the engine, if the fuel pump packs up or anything similar?

B) If the answer to A) is "No", has anybody got any idea what the problem could be?

I am pretty desperate to get this sorted so any early replies would be exceedingly appreciated!

Thanks in advance for your time/advice.



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there is no cut out switch

have a look on this site for the flow chart of a non start

Craig's Place, Alfa 75 Manuals and Information

IIRC it's in the engine section at the back, sounds electrical to me though.

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Not sure if this is at all relevant but may be the same as a similar experience I had with a 1995 Escort Zetec.

I had a problem starting it, initially it did start was running on three cylinders. I cut the engine and tried to restart but no joy. Took the plugs out and couldn't smell any fuel. I could still get a spark at the plug. Anyway after checking all the electrics I touched one of the electrical connections to the injectors and was then able to start it.

It seemed that if one of the connections wasn't clean, no fuel was getting through. I had the same problem again so disconnected all the injector connections and cleaned them up before replacing. No problems after that.

It could be an oxidised connection due to lack of use.

Good luck sorting it

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Check the relays for the fuel i njection especially the one in the engine bay on the drivers side inner wing if i remember rightly
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coolent sensor will stop it getting fuel, the one on thermostat housing
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